A Study on the Relationship between the Geomorphology and Vegetation Distribution of the Coastal Dunes in the Western Chianshuiwan, Sanjhih of Taipei County
Resource
地理學報, 51, 001-020
Journal
地理學報
Journal Issue
51
Pages
001-020
Date Issued
2008-03
Date
2008-03
Author(s)
陳彥樺
Abstract
Coastal dunes are dynamic landforms which feature complex ecosystem as a result of the interaction among wind process, marine process, geomorphologic evolution and vegetation distribution. Geomorphologic field surveys were conducted twice in the Coastal Dunes on the west side of Chianshuiwan to produce digital elevation models (DEMs), which were then used to investigate the short-term geomorphologic changes within the study area. Meanwhile, vegetation distribution data was attained from surveys of 193 quadrats. After classifying the vegetation with two-way indicator species analysis (TWINSPAN), the relationship between the dune geomorphology and vegetation distribution was analyzed. The result shows that the erosion and deposition changes of the dunes are due to factors including plant cover, shoreline alignment, beach width, and dune geomorphology. Elevation and the distance from the quadrat to shoreline are factors which affect the differences of the microenvironment within the vegetation zones.
Subjects
海岸沙丘
?值高程模型 (DEM)
植物地形學
雙向?表比較法(TWINPAN)
coastal dunes
digital elevation model (DEM)
phytogeomorphology
two-way indicator species analysis (TWINPAN)
Type
journal article
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